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Emergency vehicle traffic signal preemption system

  • US 20050104745A1
  • Filed: 03/24/2004
  • Published: 05/19/2005
  • Est. Priority Date: 08/15/2002
  • Status: Active Grant
First Claim
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1. An emergency vehicle traffic control system comprising;

  • intersection control hardware at each intersection for preemption and control of traffic signals;

    an emergency vehicle transponder for gathering navigation data to predict heading and position of said emergency vehicle;

    a warning display at each intersection alerting vehicles and pedestrians of approaching emergency vehicle;

    a communications and operations network for connecting said intersection control hardware at each intersection with said emergency vehicle transponder in each emergency vehicle to collect and transmit real-time data regarding intersection status, emergency vehicle direction and location and activation of said display at each intersection;

    whereby said emergency vehicle traffic signal control system controls preemption of traffic signals at selected intersection autonomously by transmissions to and from said emergency vehicle and said intersections.

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